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Data Set ID:

Visible Stratigraphic Dating, Siple Dome and Upstream C Cores, Version 1

This data set is part of the West Antarctic Ice Sheet cores (WAISCORES) project, an NSF-funded project to understand the influence of the West Antarctic Ice Sheet on climate and sea level change. WAISCORES researchers acquired and analyzed ice cores from the Siple Dome, in the Siple Coast region, West Antarctica.

This data set includes melt layers and annual layer data for Siple Dome cores A through J, and upstream core C (UpC). Cores were examined on a light table after the core had been sectioned longitudinally and samples removed for isotopic, chemical, and other analyses, and after the surface had been smoothed using a planer. Major stratigraphic features were noted, such as coarse-grained and fine-grained firn at shallow depths, and coarse-bubbled and fine-bubbled ice at greater depth. Melt layers were identified as bubble-free or nearly-bubble-free zones. Core lengths ranged from 30 to 133 meters.

Data in this collection were obtained in the summer of 1997. The data set is available via FTP as ACSII data (.dat), metadata (.meta) and text (.txt) files.

Geographic Coverage

Data Set Tabs

Spatial Coverage:
  • N: -81, S: -81, E: -149, W: -149

Spatial Resolution:
Not Specified
Temporal Coverage
  • 1997-06-01 to 1997-08-31
Temporal Resolution:
Not specified
  • Glaciers/Ice Sheets > Glacier Thickness/Ice Sheet Thickness
  • Ice Core Records > Ice Core Air Bubbles
  • Ice Core Records
  • Snow/Ice > Ice Depth/Thickness
  • Glaciers/Ice Sheets > Ice Sheets
  • Ice Core Records > Isotopes
  • Snow/Ice > Snow Depth
  • Snow/Ice > Snow Stratigraphy
Data Format(s):
  • ASCII Text (.txt)
Data Contributor(s): Richard Alley

Data Citation

As a condition of using this data, you must cite the use of this data set using the following citation. For more information, see our Use and Copyright Web page.

Alley, R. 1997. Visible Stratigraphic Dating, Siple Dome and Upstream C Cores, Version 1. [indicate subset used]. Boulder, Colorado USA. NSIDC: National Snow and Ice Data Center. [Date Accessed].

Questions? Please contact:

NSIDC User Services
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Contact Address:
National Snow and Ice Data Center
University of Colorado
City: Boulder
Province or State: CO
Postal Code: 80309-0449
Country: USA